.side-nav__brand {
  background: url('logo.png') no-repeat left center !important;
  margin-left: 10px;
  height: 100px;
  font-size: 26px;
  line-height: 100px;
  font-weight: 800;
  background‐size: contain !important;
}
.side-nav__brand-text {
  display: none;
}
.side-nav__brand:after{
    content: "裴育";
    margin-left: 30px;
}
